/*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Copyright (c) 2023 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file has been modified by Huawei to verify type inference by adding verification statements.
*/

// === tests/cases/compiler/genericCapturingFunctionNarrowing.ts ===
declare function AssertType(value:any, type:string):void;
function needsToNarrowTheType<First extends { foo: string }, Second extends { bar: string }, SubFirst extends First, SubFirstMore extends First & {other: string}>(thing: First | SubFirst | SubFirstMore | Second) {
    if (hasAFoo(thing)) {
AssertType(hasAFoo(thing), "boolean");
AssertType(hasAFoo, "(union) => value is First");
AssertType(thing, "union");

        console.log(thing.foo);
AssertType(console.log(thing.foo), "void");
AssertType(console.log, "(...any[]) => void");
AssertType(thing.foo, "string");
    }
    else {
        // I would expect this to work because the type should be narrowed in this branch to `Second`
        console.log(thing.bar); // Error: Property 'bar' does not exist on type 'First | Second'.
AssertType(console.log(thing.bar), "void");
AssertType(console.log, "(...any[]) => void");
AssertType(thing.bar, "string");
    }

    function hasAFoo(value: First | Second): value is First {
AssertType(hasAFoo, "(union) => value is First");
AssertType(value, "union");

AssertType("foo" in value, "boolean");
AssertType("foo", "string");
AssertType(value, "union");
        return "foo" in value;
    }
}

